Structure 81580000000000 · Clark County, WA
Carries J A Moore RD over Mason Creek, 0.3s NE 299th ST.
Set by its lowest-rated component: Deck and Superstructure and Substructure at 6 of 9.
How ratings work24 ft end to end. Lengths are drawn to scale; at this length a semi-truck would be a speck. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a multi-beam bridge.
| State | Washington |
| County | Clark |
| Location | 0.3s NE 299th ST |
| Carries | J A Moore RD |
| Crosses | Mason Creek |
| Coordinates | 45.83325, -122.62543 |
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 24.0 ft (7.3 m) |
| Max Span | 24.0 ft (7.3 m) |
| Deck Width | 24.0 ft (7.3 m) |
| Deck Area | 53.3 sq m |
| Main Spans | 1 |
| Year Built | 1930 (reconstructed 1958) |
| Avg Daily Traffic | 1,151 (2022) |
| Truck Traffic | 24% |
| Lanes On Bridge | 2 |
| Last Inspection | January 2024 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 5 — Stable for scour |
| Structure Number | 081580000000000 |
Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."
A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.